At least NVIDIA recommends testers to use 480W and over power supplies. By the way, GeForce 6800 Ultra reference cards will occupy two standard slots. However, it's not obligatory for all vendors, so we might see single-slot models as well.

socket 775 / motherboard out in China. I read an article two weeks ago in Chinese. Board makers are reluctant; due to pins onboard rather than on CPU ..... warranty issues... pins are surface mounted meaning no easy way to replace just the socket.